Combination door



Oct. 16, 1951 J. DI GIALLI-:RENZO COMBINATION DOOR Filed June 29, 1948- I INI/ENTOR. z Q20 Here/720 BY v ATTORNEY Patented Oct'. 16, 195.1

UNITED STATES PATENT OFFICE COMBINATION noon John di Giauerenzo, Philadelphia, Pa. Application June 29, 1948, serial No. 35,771

:improved combination door of the type set forth.

A further object is to provide an improved structure in which the panel can be removed only from the inside and cannot be removed from the outside when the door is in closed position.

A still further object is to produce an improved .combination door which will be inexpensive and durable and which will have a. pleasing appear- These and other objects are attained by my invention as set forth in the following specification and illustrated in the accompanying drawings in which:

Fig. 1 is a front elevational view of a door embodying my invention.

Fig. 2 is an enlarged fragmentary view, partly in section and partly in elevation showing details of construction and the manner in which the removable panel is mounted.

Fig. 3 is similar' to the right hand portion of Fig. 2 but showing the position normally assumed by the panel.

Fig. 4 is a section on line 4 4 on Fig. 3.

Fig. 5 is a section on line 5 5 on Fig. 3.

Fig. 6 is a section on line 6 6 on Fig. 1.

Fig. 7 is a section on line I 'I on Fig. 1.

Fig. 8 is a section on line 8 8 on Fig. 1.

The door shown includes stiles I0 and I2 and with top and bottom rails I4 and I6. One of the stiles, such as stile I0 is provided with hinges I8 for mounting the door.

The stile I is provided with a vertical groove 28 cut therein and is also provided with spaced molding strips 22, the space between the strips forming, in effect, a horizontal continuation of the groove 28 as best shown in Fig. 5. The top rail I4 is likewise provided with a groove 24 and With spaced molding strips 26 with the space between the strips forming, in effect, a vertical continuation of the groove 24 as best shown in Fig. 4.

The stile I2 of the door is provided with molding strips 28 which are spaced to provide a groove 36. The upper surface of the bottom rail I6 is provided with one molding strip 32 on its outer side so as to leave an inner ledge 34 on the room side thereof.

The groove 20 is provided with a number of vertically spaced springs 36 and as horizontally 1 claim. (c1. Ztl-36) extended by the molding strips 22, is deeper than the groove 30.

. The opening defined by the Stiles I8 and I2 and the top and bottom rails I4 and I6 is closed by a removable sash or closure which may have glass panels for use in cold weather, or screen panels for use in warm weather.

As shown, an upper closure 38 and a lower closure 48 are used, 'each of which is formed of a panel member 42 and a frame. which is preferably madeof light and rigid metal.

To assemble the door construction above described the upper closure S8 is grasped and moved in a direction to cause the right hand Vertical edge thereof to enter the groove 20, and enough pressure is applied to collapse the corresponding spring 36 and allow the opposite, or left hand vertical frame 44 of the upper closure to Vclear the inner edge 28 of the corresponding portion of the door stile I2. This action is illustrated in Fig. 2 in which the springs 36 which act on the upper panel 38 are almost flat and in which there is a space 46 between the inner edge 28 of the door stile I2 and the left hand edge of the frame 44 of the upper closure 38. When pressure against the upper closure is relieved, and with its left hand edge held in alignment with the groove 30, the spring 36 'will push the upper closure to the left so as to cause its left hand vertical edge to enter the groove 30. The upper closure 38 is now pushed up as far as it will go and the lower closure 46 is mounted in position in the same manner as that set forth in connection with the upper closure. Because the upper groove24 is made deep, the upper sash can be moved far enough to provide a clearance between its bottom edge and the upper edge of the lower closure, even though both closures are in position. In order to make a neat and tight fit between the lower edge of the upper closure and the upper edge of the lower closure, the bottom of the upper sash is provided with a channel 50 adapted to receive the reduced upper edge 48 of the lower closure, as best shown in Fig. 6. After the lower closure has been mounted in position,

the upper closure is moved downwardly until the i upper reduced edge 48 of the lower closure enters the channel 50 in the lower edge of the upper closure.

To remove the panels or closures 38 and 40, they both, or the upper closure alone, are pushed up, as far as possible, and the lower closure (in the event that both closures are raised) will be moved down until the reduced edge 48 thereof clears the channel 50. The lower closure 40isnow pushed to the right until its left hand edge clears groove 30 whereupon it is moved to the left until its right hand edge clears groove 20. It will be noted that because the lower closure rests on surface 34, inwardly of moulding 32, it can be moved inwardly into the room. After the lower closure has been removed, the upper closure is moved downwardly until its upper edge clears the groove 24 and it is then removedn in the same manner as that set forth in connection with the lower closure.

In order to faciliate raising of the upper closure to permit removal and installation, I pre-"- vide a handle 52 which is best shown in Fig. 6. It will be seen that Iby leaving the surface 34 on which the lower closure rests unobstructed on the room side thereof, the lower closure can be moved inwardly into the room by being merely disengaged from the channel U and the grooves 20 and 3U and without having to be moved upwardly. It will also be noted that the depth of upper groove 24 permits upward movement of the upper closure 38 to allow its bottom 4channel 50 to clear the reduced upper edge 48 Lof the lower closure.

What I cla-im is:

A combination door comprising a first stile, a `second stile, an upper rail Yand a lower rail, all co=acting to define an opening, an upper closure `for the upper portion of said opening, a lower closure for the lower portion of said Vopen-ing, there being a first groove of a predetermined `depth in the edge of said rst Ystile which faces lsaid opening and Va second groove of `a greater depth in the edge of said second stile which Yfaces said opening whereby said upper Aand `lower closures may be moved into said second Agroove so that their opposite edges clear said rst groove, Springs in said second groove lbiasing said closures in the direction of said rst Stile, a wall v'struc- 4 ture denng' a channel in the lower edge of said upper closure for receiving the upper edge of said lower closure, there being a third groove formed in said upper rail, the depth of said third groove being greater than the depth of said channel whereby, said upper closure may be moved upwardly until said channel clears the upper edge of said lower closure, and whereby, when said lower closure rests on said lower rail with 'its' upper edge seated in said channel, the upper edge of said upper closure will be engaged in said third groove, and a single abutment carried by said lower rail and located outwardly of that `portion of the lower rail which supports said lower closure when the latter is in position on said lower rail whereby when said upper closure is moved up to disengage said channel from said lower closure, said lower closure may be moved into said second groove until its opposite edge clears said iirst groove whereupon said lower closure may yloe removed from said opening in a direction away from said abutment.

JOHN DI GIALL'E'RENZO.

REFERENCES CITED The renewing .references are of record in the Iile of 'this vpatenti UNITED STATES PATENTS 

